Method of manufacturing socket punches
AssigneeSnap-on Incorporated
InventorsDaniel M. Eggert, Steven R. Wente, David G. McGreal, Jeffrey M. Arendt
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a punch, such as a socket punch, using wire EDM with at least six steps. The method involves forming a blank, holding the blank with an adapter, machining grooves in the blank, manufacturing a side relief of a working portion using wire EDM, milling the working portion to a final size, and forming a cone point on the end of the working portion. The method allows the punch to be manufactured more quickly and from a CAD model, therefore removing the need for over-specialized equipment and improving manufacturing times.
Claims19
A method of manufacturing a punch from a blank having first and second halves, wherein the second half has a second end, the method comprising:
- holding the blank;
- forming grooves in the second half with an electric discharge machine (“EDM”), wherein the grooves have respective groove profiles and extend to the second end;
- forming a hex portion with the EDM machine in the blank in a portion of the second half, wherein respective groove portions and groove remnants of the groove profiles remain after forming the hex portion with the EDM machine, and wherein the groove portions are disposed between the hex portion and the first half, and the groove remnants are disposed adjacent to the second end;
- milling the hex portion to obtain a final hex portion size;
- and
- machining a cone point at the second end.
A method of manufacturing a punch comprising:
- forming a blank having first and second halves, wherein the second half has a second end;
- machining a geometry of the blank with an EDM machine and forming grooves having respective groove profiles in the second half and that extend to the second end;
- milling a hex portion in the blank in a portion of the second half to obtain a final hex portion size, wherein respective groove portions and groove remnants of the groove profiles remain after milling the hex portion, the groove portions are disposed between the hex portion and the first half, and the groove remnants are disposed adjacent to the second end;
- and
- machining a cone point at the second end.
Dependencies are inferred from the claim text.